
\begin{table}[h!]
\caption{Effects on Immigration by Resident Immigrants and Cross-Border Workers (CBWs). 
  Outcome: Resident Immigrants (Models 1, 2, 5, 6) or CBWs (Models 3, 4, 7, 8) Relative to 1998 Swiss (Models 1--4) or Current Swiss (Models 5--8) Population. 
  Sample: Border Region, Travel Minutes $<=$ 30, 1991--2018 (Resident Immigrants) or 1996--2016 (CBWs). Weights are based on the population size of each municipality.}
\begin{center}
\begin{tabular}{l D{.}{.}{5.5} D{.}{.}{5.5} D{.}{.}{5.5} D{.}{.}{5.5} D{.}{.}{5.3} D{.}{.}{5.4} D{.}{.}{5.3} D{.}{.}{5.3}}
\toprule
 & \multicolumn{4}{c}{Cross-Border Workers} & \multicolumn{4}{c}{Resident Immigrants} \\
\cmidrule(lr){2-5} \cmidrule(lr){6-9}
 & \multicolumn{1}{c}{Resident} & \multicolumn{1}{c}{Resident} & \multicolumn{1}{c}{CBWs} & \multicolumn{1}{c}{CBWs} & \multicolumn{1}{c}{Resident} & \multicolumn{1}{c}{Resident} & \multicolumn{1}{c}{CBWs} & \multicolumn{1}{c}{CBWs} \\
\midrule
0--15 Minutes X Transition & 0.51^{***}             & 1.06^{***}              & 0.33^{**}              & 1.04^{***}              & -0.00                  & -0.79^{**}              & -0.34                  & -1.21^{*}               \\
                           & (0.13)                 & (0.17)                  & (0.12)                 & (0.26)                  & (0.19)                 & (0.27)                  & (0.21)                 & (0.60)                  \\
0--15 Minutes X Free       & 3.38^{***}             & 6.87^{***}              & 2.61^{***}             & 6.24^{***}              & 0.27                   & -0.91                   & -0.06                  & -0.32                   \\
                           & (0.56)                 & (1.18)                  & (0.41)                 & (1.12)                  & (0.47)                 & (0.77)                  & (0.39)                 & (1.05)                  \\
\midrule
Weights                    & \multicolumn{1}{c}{No} & \multicolumn{1}{c}{Yes} & \multicolumn{1}{c}{No} & \multicolumn{1}{c}{Yes} & \multicolumn{1}{c}{No} & \multicolumn{1}{c}{Yes} & \multicolumn{1}{c}{No} & \multicolumn{1}{c}{Yes} \\
Num. obs.                  & 20853                  & 20853                   & 20853                  & 20853                   & 27804                  & 27804                   & 27804                  & 27804                   \\
Num. groups: bfs19         & 993                    & 993                     & 993                    & 993                     & 993                    & 993                     & 993                    & 993                     \\
Num. groups: year          & 21                     & 21                      & 21                     & 21                      & 28                     & 28                      & 28                     & 28                      \\
\bottomrule
\multicolumn{9}{l}{\scriptsize{$^{***}p<0.001$; $^{**}p<0.01$; $^{*}p<0.05$}}
\end{tabular}
\label{tab:splitImm}
\end{center}
\end{table}
